<?php 

$xiaobo = "{'sdfsdf':'sfsdfsdf'}";

var_dump($xiaobo);

$yk = array(1,2,3,4,5,6);
$ykk = array(
	"wkk"=>'sdfsdf',
	'username'=>array(
		"wkk"=>'sdfsdf',
		'username'=>array(
			"wkk"=>'sdfsdf',
			'username'=>'zhibinm'
			)
		)
	);

$ykk1 = json_encode($ykk);
$yyk2 = serialize($ykk);
var_dump($ykk1,$yyk2)；


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 ?>